Bonus, good.

SINGULAR.
MASCULINE. FEMININE. NEUTER.
Nom. bonus bona bonum
Gen. bonī bonae bonī
Dat. bonō bonae bonō
Acc. bonum bonam bonum
Voc. bone bona bonum
Abl. bonō bonā bonō

PLURAL.
Nom. bonī bonae bona
Gen. bonōrum bonārum bonōrum
Dat. bonīs bonīs bonīs
Acc. bonōs bonās bona
Voc. bonī bonae bona
Abl. bonīs bonīs bonīs

1. The Gen. Sing. Masc. and Neut. of Adjectives in -ius ends in -iī (not in as in case of Nouns; see [§ 25], 1; 2). So also the Voc. Sing. of such Adjectives ends in -ie, not in ī. Thus eximius forms Gen. eximiī; Voc. eximie.

2. Distributives (see [§ 78], 1, c) regularly form the Gen. Plu. Masc. and Neut. in -um instead of -ōrum (compare [§ 25], 6); as, dēnum centēnum; but always singulōrum.

[64]. Masculine like puer:—

Tener, tender.

SINGULAR.
MASCULINE. FEMININE NEUTER.
Nom. tener tenera tenerum
Gen. tenerī tenerae tenerī
Dat. tenerō tenerae tenerō
Acc. tenerum teneram tenerum
Voc. tener tenera tenerum
Abl. tenerō tenerā tenerō

PLURAL.
Nom. tenerī tenerae tenera
Gen. tenerōrum tenerārum tenerōrum
Dat. tenerīs tenerīs tenerīs
Acc. tenerōs tenerās tenera
Voc. tenerī tenerae tenera
Abl. tenerīs tenerīs tenerīs

[65]. Masculine like ager:—

Sacer, sacred.

SINGULAR.
MASCULINE. FEMININE. NEUTER.
Nom. sacer sacra sacrum
Gen. sacrī sacrae sacrī
Dat. sacrō sacrae sacrō
Acc. sacrum sacram sacrum
Voc. sacer sacra sacrum
Abl. sacrō sacrā sacrō

PLURAL.
Nom. sacrī sacrae sacra
Gen. sacrōrum sacrārum sacrōrum
Dat. sacrīs sacrīs sacrīs
Acc. sacrōs sacrās sacra
Voc. sacrī sacrae sacra
Abl. sacrīs sacrīs sacrīs

1. Most adjectives in -er are declined like sacer. The following however, are declined like tener: asper, rough; lacer, torn; līber, free; miser, wretched; prōsper, prosperous; compounds in -fer and -ger; sometimes dexter, right.

2. Satur, full, is declined: satur, satura, saturum.

Nine Irregular Adjectives.